Where does “vestigiality” come from?

vestigiality (English) comes from English vestigial, from Latin vestigium, from Latin vē-, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.

vestigiality (English): The quality of being vestigial

Definitions

  1. The quality of being vestigial

Ancestry of “vestigiality”, step by step

vestigiality traces back through two separate lines of ancestry.

via English vestigial

StepLanguageWordMeaning
1EnglishvestigialOf or pertaining to a vestige or remnant; like a...
2Latinvestigiumfootprint, track; trace, vestige, mark; sole of...
3Latinvē-too much, too little
4Proto-Italic*djous
5Proto-Indo-Europeandyḗwssky, heaven; sky god
6Proto-Indo-Europeandyéwssky, heaven
7Proto-Indo-Europeandyew-to be bright; sky, heaven

via English ity

StepLanguageWordMeaning
1Englishity
2Ingrian-uUsed to form nouns from verbs
Every word from Proto-Indo-European dyew-Every word from Proto-Indo-European dyéwsEvery word from Proto-Indo-European dyḗws